:root{--ink:#202f2d;--muted:#687b78;--line:#dce6e3;--bg:#f6f8f6;--white:#fff;--deep:#184f47;--mint:#e5f2ec;--accent:#287766;--warn:#fff4dc;--error:#a74439}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",sans-serif;font-size:14px;line-height:1.5}button,input,select,textarea{font:inherit}button{cursor:pointer;transition:background-color .12s}button:disabled{opacity:.45;cursor:not-allowed}.site-header{border-bottom:1px solid var(--line);background:#fff;padding:15px max(20px,calc((100vw - 1190px)/2));display:flex;align-items:center;justify-content:space-between;gap:16px}.wordmark{font-size:21px;font-weight:720;letter-spacing:-.6px}.wordmark span{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:0;margin-left:6px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:800;color:var(--accent)}.header-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.container{max-width:1220px;margin:0 auto;padding:24px 22px 50px}.heading{margin:12px 0 25px}.heading h1{font-size:clamp(27px,4vw,42px);margin:5px 0;letter-spacing:-1.3px}.heading p{max-width:770px;color:var(--muted);font-size:15px;margin:6px 0}.columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px}.panel{background:var(--white);border:1px solid var(--line);border-radius:13px;padding:23px;margin-bottom:20px;box-shadow:0 3px 18px #204a3c08}.section-header{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:15px;flex-wrap:wrap}.section-header h2{font-size:19px;margin:0;letter-spacing:-.4px}h3{font-size:15px;margin:0 0 9px}.step{display:inline-grid;place-items:center;background:var(--mint);border-radius:7px;color:var(--deep);font-size:11px;padding:4px 7px;margin-right:7px;vertical-align:2px}label{display:block;font-size:12px;font-weight:650;margin:0 0 13px}label input:not([type=checkbox]):not([type=file]),label select,textarea{display:block;width:100%;padding:10px 11px;border:1px solid #cddbd6;border-radius:7px;background:#fff;color:var(--ink);margin-top:5px;min-width:0}textarea{resize:vertical}input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid #499883;outline-offset:1px}.hint{color:var(--muted);font-size:12px;margin:8px 0}.subtle{color:var(--muted)}.status{font-size:12px;color:var(--deep);min-height:18px;margin:10px 0}.status.error{color:var(--error)}.record-actions{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin:12px 0}.record-actions button,.file-button{white-space:nowrap}button,.file-button{border:1px solid #bfd3cc;border-radius:7px;background:white;color:var(--deep);padding:9px 14px;font-weight:700}.primary{background:var(--deep);color:white;border:1px solid var(--deep)}.primary:hover{background:#226759}.ghost:hover{background:#e9f5f1}.danger{color:#9b352e;border-color:#f0c3bc}.danger:hover{background:#fff1ef}.small{font-size:12px;padding:6px 10px}.wide{width:100%;padding:12px;margin-top:10px}.file-button{position:relative;overflow:hidden;display:inline-block;font-size:14px;margin:0;cursor:pointer}.file-button input{position:absolute;opacity:0;inset:0;cursor:pointer}audio{width:100%;margin:6px 0 0}.banner{margin:0 0 20px;padding:12px 17px;border-radius:9px;border:1px solid #e8d8a7}.warning{background:var(--warn)}.exercise-list{max-height:370px;overflow:auto}.exercise-item{width:100%;text-align:left;display:block;padding:13px 11px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:#fff;color:var(--ink)}.exercise-item:hover,.exercise-item.selected{background:var(--mint)}.exercise-item b{display:block;font-size:14px}.exercise-item span{font-size:12px;color:var(--muted)}.pill{font-size:11px;background:#f1f5f3;border:1px solid #d9e3dd;padding:4px 8px;border-radius:20px;color:var(--deep);font-weight:700}.note-strip{display:flex;gap:5px;overflow-x:auto;align-items:flex-start;padding:10px 0 14px;min-height:67px}.note-chip{padding:8px 11px;flex-shrink:0;border:1px solid #cddbd6;background:#f8faf9;color:var(--deep);border-radius:8px;line-height:1.3}.note-chip small{display:block;font-size:10px;color:var(--muted)}.note-chip.selected{background:var(--deep);color:white;border-color:var(--deep)}.note-chip.selected small{color:#d0e9de}.note-chip.original{cursor:default;background:#f1f4f2;border-color:#e2e7e4}.two-pane{display:grid;grid-template-columns:1fr 1fr;gap:22px}.chart-wrap{margin:12px 0 25px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:14px}.chart-wrap canvas{width:100%;display:block}.edit-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:26px}.selected-panel{background:#fbfcfb;border:1px solid var(--line);border-radius:10px;padding:15px}.field-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 12px}.tick{display:flex;align-items:center;gap:8px}.tick input{margin:0}.history{border-top:1px solid var(--line);padding-top:12px;margin-top:20px}.history summary{cursor:pointer;color:var(--deep);font-weight:650}.history-list{font-size:12px;color:var(--muted);padding:5px 0}footer{text-align:center;color:var(--muted);font-size:12px;margin-top:20px}.login-screen{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 55% 15%,#e5f4ee,#f8f9f7 63%)}.login-card{width:min(420px,100%);background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px;box-shadow:0 16px 50px #204a3c17}.login-card h1{margin:2px 0 10px;font-size:30px}.login-card .primary{width:100%;margin:12px 0}.brand-graphic{font-size:52px;color:var(--deep)}.login-foot{font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:17px;margin-top:18px}@media(max-width:790px){.columns,.two-pane,.edit-grid{grid-template-columns:1fr}.field-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.panel{padding:16px}.site-header{padding:12px 15px}.wordmark{font-size:18px}}@media(max-width:430px){.field-grid{grid-template-columns:1fr}.container{padding:17px 12px}.record-actions button,.file-button{font-size:12px;padding:8px 9px}}

/* V0.5 — synchronized, language-independent musical timeline */
.language-switch{display:flex;align-items:center;gap:5px;white-space:nowrap;font-size:12px;color:var(--muted)}
.language-switch button{background:transparent;border:0;color:var(--deep);padding:4px 5px;border-radius:3px;font-size:12px;font-weight:600}
.language-switch button.active{background:#e5f2ec;outline:1px solid #b7d3c6}
.login-language{justify-content:flex-end;margin:-12px -8px 10px 0}
.timeline-panel{margin:10px 0 22px;padding:17px 16px;border:1px solid #cbded5;border-radius:12px;background:#fff;direction:ltr}
.timeline-top{display:flex;gap:15px;justify-content:space-between;align-items:flex-start;flex-wrap:wrap}
.timeline-top h3{font-size:17px;margin:0}
.timeline-top p{margin:4px 0 8px}
.timeline-tools{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.timeline-tools button{min-width:32px}
#zoomLabel{font-weight:700;min-width:34px;text-align:center;font-variant-numeric:tabular-nums}
.timeline-player{display:flex;gap:12px;align-items:center;margin:4px 0 10px}
.timeline-player audio{margin:0;flex:1;min-width:160px}
#clock{font-variant-numeric:tabular-nums;color:var(--deep);font-weight:700;min-width:94px;text-align:right}
.timeline-options{display:flex;align-items:center;gap:15px;flex-wrap:wrap;margin:8px 0 13px}
.timeline-options .tick{margin:0;font-size:12px}
#timelineInfo{color:var(--muted);font-size:11px;flex:1}
.timeline-stack{display:flex;flex-direction:column;gap:2px;min-width:0;direction:ltr}
.timeline-stack .lane{display:grid;grid-template-columns:78px minmax(0,1fr);gap:8px;align-items:stretch}
.timeline-stack .lane-title{display:flex;align-items:center;justify-content:center;text-align:center;background:#f4f8f5;color:var(--deep);font-size:12px;border:1px solid #e3eae5;border-radius:5px;direction:ltr}
.timeline-stack canvas{display:block;width:100%;touch-action:none;background:#fff;border:1px solid #edf1ee;border-radius:4px;cursor:crosshair}
.timeline-stack #notesChart{cursor:pointer}
.timeline-panel .hint{font-size:11px}
.detection-details{margin:12px 0 18px;padding:11px 14px;border:1px solid var(--line);border-radius:8px}
.detection-details summary{cursor:pointer;color:var(--deep);font-weight:650}
.detection-details .two-pane{margin-top:15px}
.cents-presets{display:flex;gap:4px;margin:6px 0 0}
.cents-presets button{font-size:11px;padding:3px 8px;border-radius:5px;font-weight:650}
[dir="rtl"] .site-header,[dir="rtl"] .heading,[dir="rtl"] .panel,[dir="rtl"] .login-card{text-align:right}
[dir="rtl"] .field-grid input[type="number"],[dir="rtl"] #clock,[dir="rtl"] .note-strip,[dir="rtl"] #originalAudio{direction:ltr}
[dir="rtl"] .note-chip{direction:ltr;text-align:left}
[dir="rtl"] .record-actions{direction:rtl}
[dir="rtl"] input[type="number"]{direction:ltr;text-align:left}
[hidden]{display:none!important}
@media(max-width:790px){.timeline-stack .lane{grid-template-columns:58px minmax(0,1fr);gap:4px}.timeline-stack .lane-title{font-size:10px}.timeline-panel{padding:12px 9px}.timeline-player{flex-wrap:wrap}.timeline-player #clock{margin-left:auto}}
@media(max-width:500px){.timeline-tools{width:100%}.timeline-options{gap:10px}.timeline-stack .lane{grid-template-columns:45px minmax(0,1fr)}.timeline-stack .lane-title{font-size:9px}.timeline-panel{margin-left:-6px;margin-right:-6px}.wordmark span{display:block}.site-header{align-items:flex-start}}